.input_yzm{
    display:block ;
}
.input_yzm:after{
    content:'';
    display: block;
    clear: both;
}
.yzm{
    float: left;
    width:244px;
}
.yzm_btn{
    float: right;
    margin-top: 16px;
}
.check_box_btn{
    float:left;
}
.check_box_text{
    float: left;
}
.check_box{
    padding-top:10px;
}
.check_box:after{
    content:'';
    display: block;
    clear: both;
}